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LilyGo T-Watch S3

Official Active

~$43 approx.· 2026-06

Product page ↗

References: mesh-sn.de ↗

MCU: ESP32-S3
Radio: SX1262
Display: 1.54″ LCD / TFT
GPS: None
Battery: 580 mAh
Connectivity: USB, BLE, Wi-Fi

Roles

CompanionRepeaterRoom ServerStandalone Ui

Transports

bleusbwifi

Other variants

Compare all 2 →

T-Watch S3 Plus esp32-s3· Semtech SX1262

Hardware

Radio

Technology: LORA
Chip: Semtech SX1262 ↗
Frequency: 433 MHz,868 MHz,915 MHz,920 MHz

Processor

Family: Espressif ESP32 series ↗
Model: Espressif ESP32-S3 ↗
Architecture: Xtensa LX
Flash: 16 MB
RAM: 512 KB
PSRAM: 8 MB

Display

Type: LCD / TFT
Controller: ST7789
Size: 1.54″
Resolution: 240 × 240
Colors: Color
Touch: Yes

Battery

Battery: Supported
Built-in capacity: 580 mAh
Chemistry: LiPo
Built-in: Yes
Charging: Yes
Connector: Built-in LiPo 580mAh

Power

Power draw (idle): 40 mA
Idle runtime: 14.5 h
Power draw (TX): 110 mA

Physical

LEDs: Status LEDs
Dimensions: 46 × 46 × 12 mm
Board area: 21.2 cm²
Board volume: 25.4 cm³
Weight: 55 g

Connectivity

USB: USB-C
USB modes: Power, Serial, Flashing
Bluetooth: BLE 5.0
Wi-Fi: 802.11 b/g/n

Details

Kind: Product
Lifecycle: Active
Family: lilygo-t-watch-s3
Firmware support: 2
Catalog completeness: 82 %
Also known as: T-Watch S3

Firmware support

Firmware	Type	Target	Status	Notes
MeshCore (Official)	Official	—	✓ Supported
MCLite	Fork	—	✓ Supported	T-Watch Ultra — wrist-worn with AMOLED touchscreen.